- Outlets
- 2, individually controllable
- Max Load
- 15 A and 1875 W total across both outlets (TP-Link's rating)
- Weather Resistance
- IP64 rated against dust and water splashes (TP-Link's rating)
- Connectivity
- 2.4 GHz Wi-Fi, no hub required
- Wireless Range
- Up to 300 ft in open space (TP-Link's claim)
- Works With
- Alexa, Google Assistant, Samsung SmartThings
- Dimensions
- 4.9 x 2.38 x 2.29 in
TP-Link
TP-Link Kasa KP400 Outdoor Smart Plug
A weather-resistant two-outlet Wi-Fi plug for string lights, fountains, and other outdoor gear you want on a schedule.
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All prices
| Store | Price | Checked | |
|---|---|---|---|
| Target Best price | $23.49 | ✓ OCT 11 | Go to store |
Prices were checked on the dates shown and can change at any time. The store page is always authoritative. Shipping and taxes are not included.
| 2026-10-11 | Target | $23.49 |
| 2026-10-04 | Target | $23.49 |
| 2026-09-27 | Target | $23.49 |
| 2026-09-20 | Target | $23.49 |
| 2026-09-17 | Target | $23.49 |
| 2026-08-28 | Target | $23.49 |
Each line is the price we verified on that date.
Our verdict
Where it wins
- Two outlets you can switch independently from one unit
- IP64 housing is built for outdoor dust and splash exposure
- Works across Alexa, Google Assistant, and SmartThings, not locked to one ecosystem
Where it loses
- Both outlets share the single 15 A, 1875 W budget
- 2.4 GHz Wi-Fi only, and outdoor placement can stretch a weak router signal
- Bulky housing, this is not the plug to use discreetly indoors
For patio string lights or holiday lighting this does the job of two smart plugs in one weather-resistant unit at a fair price. Buy it for outdoor sockets specifically. If you only need indoor plugs, smaller and cheaper indoor multi-packs from Wyze or Govee make more sense.
Also in smart plugs
Amazon Smart Plug
Amazon's own single-outlet Wi-Fi plug, built for households already running Alexa and nothing else.
Govee Smart Plug Pro 4-Pack
A four-pack of Wi-Fi and Bluetooth smart plugs with per-plug energy monitoring, aimed at people outfitting several rooms at once.
Wyze Plug 2-Pack
A two-pack of basic Wi-Fi smart plugs for people who want app and voice control of lamps, fans, and other plug-in devices without buying a hub.
Common questions
Can I leave it outside year round?
TP-Link rates the housing IP64, which covers dust and splashing water. It should hang under some cover rather than sit submerged or in standing water.
Can I control each outlet separately?
Yes. The two outlets are individually controllable in the Kasa app and through voice assistants.
Does it need a hub?
No. It connects directly to a 2.4 GHz Wi-Fi network, and TP-Link claims up to 300 ft of range in open space.
Prices last verified Oct 11, 2026.